Last Updated On 16-03-2023 - By Jeesha Sara
An electric cable of copper has just one wire of radius 9 mm. Its resistance is 
. This single copper wire of cable is replaced by 6 different well insulated copper wires each of radius 3 mm. The total resistance of the cable will now be equal to
a)
b)
c)
d)
An electric cable of copper has just one wire of radius 9 mm. Its resistance is . This single copper wire of cable is replaced by 6 different well insulated copper wires each of radius 3 mm. The total resistance of the cable will now be equal to
a)
b)
c)
d)
Question ID - 150316 :-
An electric cable of copper has just one wire of radius 9 mm. Its resistance is . This single copper wire of cable is replaced by 6 different well insulated copper wires each of radius 3 mm. The total resistance of the cable will now be equal to
a)
b)
c)
d)
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An electric cable of copper has just one wire of radius 9 mm. Its resistance is |
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(a) For one wire cable, Resistance, For other wire of cable, Resistance,
When six wires each of resistance
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are connected in parallel, their effective resistance will be
Next Question :
Two resistance 
and 
are joined as shown in the figure to two batteries of e.m.f. 
and 
If 
is short-circuited, the current through 
is
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